【发布时间】：2018-02-13 17:12:35
【问题描述】：
我试图在woocommerce_cart_calculate_fees 钩子中传递一个变量，但是这段代码不起作用。当我尝试在变量中传递静态值时，它可以工作。
这是我的代码：
add_action('woocommerce_cart_calculate_fees' , 'add_custom_fees', 20, 1);
function add_custom_fees( WC_Cart $cart){
$final_discount; // storing ajax value
$static_value = 5; // static value
if ($final_discount) {
/**
* custom discount for the cart in woocommerce
*/
// Hook before calculate fees
add_action('woocommerce_cart_calculate_fees', 'add_custom_fees');
/**
* Add custom fee if more than three article
* @param WC_Cart $cart
*/
function add_custom_fees(WC_Cart $cart) {
// Calculate the amount to reduce
global $final_discount;
$discount = $cart->subtotal * $final_discount / 100;
$cart->add_fee('10% discount has been added.', -$discount);
}
}
}
编辑：
现在我要在woocommerce_cart_calculate_fees 钩子中传递一个WC_Session 值，代码有效但会话变量在页面刷新之前不会更新。
会话变量存储自 woocommerce 结帐页面的 billing_postcode 字段的 onchange ajax 值。
我的 jQuery 代码（Ajax）：
jQuery(document).ready(function () {
jQuery('#billing_postcode').on('change', function (event) {
//alert( this.value );
event.preventDefault();
var billing_postcode = jQuery('#billing_postcode').val();
console.log(billing_postcode);
var data = {
action: 'woocommerce_apply_state',
security: wc_checkout_params.apply_state_nonce,
billing_postcode: billing_postcode
};
jQuery.ajax({
type: "POST",
data: data,
url: wc_checkout_params.ajax_url,
success: function (code) {
console.log(code);
if (code === '0') {
jQuery('body').trigger('update_checkout');
}
},
dataType: 'html'
});
});
});
我的主题的functions.php文件中的PHP代码：
wp_enqueue_script('zip_code', get_template_directory_uri() . '/assets/js/zipcode.js', array('jquery'));
wp_localize_script('zip_code', 'wc_checkout_params', array('ajaxurl' => admin_url('admin-ajax.php')));
add_action('wp_ajax_woocommerce_apply_state', 'discount', 10);
add_action('wp_ajax_nopriv_woocommerce_apply_state', 'discount', 10);
function discount() {
if(isset($_POST['billing_postcode'])){
$billing_postcode = isset($_POST['billing_postcode'])?$_POST['billing_postcode']:'not yet';
global $wpdb;
$zipcodes = $wpdb->get_results(
$wpdb->prepare( "
SELECT * FROM wp_zip_codes_value
WHERE zip_code_value = %d",
$billing_postcode
)
);
$zip_for_discount = array();
foreach ( $zipcodes as $zipcode ){
$zip_for_discount = $zipcode->zip_code_id;
}
$find_discount = $wpdb->get_results(
$wpdb->prepare( "
SELECT * FROM wp_zip_codes
WHERE zip_code = %d",
$zip_for_discount
)
);
$final_discount = array();
if($find_discount){
foreach ( $find_discount as $discount ){
$final_discount[] = $discount->discount;
}
}
$final_discount[0];
WC()->session->set( 'final_discount', $final_discount[0] );
}
}
add_action('woocommerce_cart_calculate_fees' , 'add_custom_fees', 20, 1);
function add_custom_fees( WC_Cart $cart){
if ( is_admin() && ! defined( 'DOING_AJAX' ) ) return;
$percent = WC()->session->get( 'final_discount' );
if( $percent > 0 ){
$discount = $cart->subtotal * $percent / 100;
$cart->add_fee( __('Zip Code Discount', 'woocommerce' ) . " ($percent%)", -$discount);
}
}
【问题讨论】：
标签： php wordpress woocommerce cart discount